Trace hydrazine detection with fluorescent conjugated polymers: A turn-on sensory mechanism

被引：110

作者：

Thomas, SW ^{[1
]}

Swager, TM ^{[1
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

ADVANCED MATERIALS | 2006年 / 18卷 / 08期

关键词：

D O I：

10.1002/adma.200502468

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Exposure of hydrazine vapor to conjugated-polymer films reduces the small number of oxidized trap sites that quench excitons. This scheme is effective for trace hydrazine detection with a detection limit of less than 1 ppm. The introduction of an oxidizing dopant quenches the polymer emission and permits detection of hydrazine with larger on/off ratios (see figure).

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页码：1047 / +

页数：5

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